This research focuses on slow tourism in low-density areas of Beiras and Serra da Estrela, Portugal, and explores how these genuine and authentic spaces can become attractive for tourism development. Compared to visitors who travel to a destination to visit as many attractions as possible in the shortest time, slow tourists refuse to be treated as a number and seek to receive from and give to their destination in the same proportion. Their involvement in a host community, practiced in a personalized, deep, and informed way, contributes to their well-being. The community's inhabitants recognize that their cultural identity is valued, feel motivated to serve as ambassadors, and note that tourist activities can lead to improvements in their quality of life. This research includes the results of interviews, a benchmarking in Italy, and an analysis of a village tourism. The findings reveal the opportunities they hold for slow tourism, with very positive effects for local development.